I started using marimo for the reactive execution, after being spoiled by Observable and Pluto.jl Being able to plug directly into Altair charts and tables was a huge boon. Then I discovered anywidget, which has been a game changer.

Now I use Claude to generate anywidgets for controls I need, and just focus on the heavy lifting with python, it's great. Being able to just have this all run in one flow with pair should make this 10x smoother.

As an example I get spreadsheets sent by clients that all have different file types, formatting, names, and business rules. I had Claude build me a widget to define a set of data-cleaning steps (merge x+y fields, split with regex, etc.). Now this task that used to take a lot of manual work and iteration is just upload a spreadsheet, preview and select my cleaning steps, run my algorithm and wait for it to come out the other side (with labelled progress bars). When it's done I get a table element and some interactive Altair charts to click on to filter and fine-tune, then I can just export the table and send it.

This task used to be done manually by a team, then I turned it into 1-2 hours with Jupyter. Marimo let me turn it into 5-15 minutes. Visually inspecting the results by a human is a requirement, so it's not completely automatable, but 15 mins turnaround every few weeks feels good enough.

Anyways, marimo rocks. The _only_ thing missing is the easy deploy for internal-users story as I cannot use molab (yet?).